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6110A Aluminum vs. S32803 Stainless Steel

6110A aluminum belongs to the aluminum alloys classification, while S32803 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 6110A aluminum and the bottom bar is S32803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
210
Elongation at Break, % 11 to 18
18
Fatigue Strength, MPa 140 to 210
350
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
81
Shear Strength, MPa 220 to 280
420
Tensile Strength: Ultimate (UTS), MPa 360 to 470
680
Tensile Strength: Yield (Proof), MPa 250 to 430
560

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 650
1450
Melting Onset (Solidus), °C 600
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 160
16
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
19
Density, g/cm3 2.8
7.7
Embodied Carbon, kg CO2/kg material 8.4
3.7
Embodied Energy, MJ/kg 150
53
Embodied Water, L/kg 1170
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 47 to 58
120
Resilience: Unit (Modulus of Resilience), kJ/m3 450 to 1300
760
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 36 to 47
25
Strength to Weight: Bending, points 41 to 48
22
Thermal Diffusivity, mm2/s 65
4.4
Thermal Shock Resistance, points 16 to 21
22

Alloy Composition

Aluminum (Al), % 94.8 to 98
0
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0.050 to 0.25
28 to 29
Copper (Cu), % 0.3 to 0.8
0
Iron (Fe), % 0 to 0.5
62.9 to 67.1
Magnesium (Mg), % 0.7 to 1.1
0
Manganese (Mn), % 0.3 to 0.9
0 to 0.5
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 0
3.0 to 4.0
Niobium (Nb), % 0
0.15 to 0.5
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0.7 to 1.1
0 to 0.55
Sulfur (S), % 0
0 to 0.0035
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0